[FIX] sap.m.Dialog: Dialog footer is no longer flickering
[FIX] sap.m.Dialog: Dialog footer is no longer flickering

Change-Id: I29e173501d87d9623e52acacf106f51404be13a8
BCP: 1880520178

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5